本合同经双方当事人各自国家的审批机关批准之日起正式生效。

Effective date of the contract means the date when the contract is approved by competent authorities of the respective Party's countries.

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批准转让的，转让合同自批准之日起生效。

In case of approval of the transfer, the transfer contract shall take effect as of the day of approval.

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合同自批准之日起生效，满六个月尚未实施的，原审批机关可以撤销合同，当事人如有正当理由，允许于限期前申请延长。

The contract comes into force on the date of approval, and it may be cancelled by the approval department if it is not implemented within six months.

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